Best snow car I ever had was my 86 buick century. 92 hp, 3spd auto, 175/70/40 tires (or something close to that, they were narrow), and rear suspension geometry that completely unloads the rear end under braking. To turn quickly in snow you maintain a steady throttle and dab the brakes, swing the back end in an opportune direction, and guide the 10mph drift with subtle application of throttle and steering. More throttle to straighten out, more steering to keep the back end out. I was the Scandinavian flick master in that car. Only time I got stuck was when I slid the front end a little to close to some tightly packed snow and ended up with the front wheels off the ground.
Second best was my caravan, but on good tires it would only hold stable four wheel drifts. Good for bad drivers, not much fun for me. You had to really toss it into a corner to get the back end out and that usually involved speeds a little to high for snowy public roads. It was also top heavy enough that I feared going off sideways even at slow speeds could result in a roll.
On topic, Dayton Ohio doesn't really get that much snow but the whole area shuts down with even a light dusting. It snows every year and no one ever figures out that all you really need to do is slow down.
